Humans making Earth an increasingly unavailable planet: UN

Our children and their children will inherit a world of extreme weather events, sea-level rise, a drastic loss of plants and animals, said the UN report

Humans are making Earth a broken and increasingly unlivable planet through climate change, biodiversity loss and pollution. So the world must make dramatic changes to society, economics and daily life, a new United Nations report says.

Unlike past UN reports that focused on one issue and avoided telling leaders actions to take, Thursday's report combines three intertwined environment crises and tells the world what's got to change. It calls for changing what governments tax, how nations value economic output, how power is generated, the way people get around, fish and farm, as well as what they eat.

“Without nature's help, we will not thrive or even survive,” Secretary-General Antonio Guterres said. “For too long, we have been waging a senseless and suicidal war on nature. The result is three interlinked environmental crises.”

Thus the 168-page report title is blunt: “Making Peace With Nature.”

“Our children and their children will inherit a world of extreme weather events, sea-level rise, a drastic loss of plants and animals, food and water insecurity and increasing likelihood of future pandemics,” said report lead author Sir Robert Watson, who has chaired past UN science reports on climate change and biodiversity loss.

“The emergency is in fact more profound than we thought only a few years ago,” said Watson, who has been a top-level scientist in the US and British governments.

The report highlighted what report co-author Rachel Warren of the University of East Anglia called “a litany of frightening statistics that hasn't really been brought together:”

• Earth is on the way to an additional 3.5 degrees warming from now (1.9 degrees Celsius), far more than the internationally agreed-upon goals in the Paris accord.

• About 9 million people a year die from pollution.

• About 1 million of Earth's 8 million species of plants and animals are threatened with extinction.

• Up to 400 million tons of heavy metals, toxic sludge and other industrial waste are dumped into the world's waters every year.

• More than 3 billion people are affected by land degradation, and only 15% of Earth's wetlands remain intact.

• About 60% of fish stocks are fished at the maximum levels. There are more than 400 oxygen-depleted “dead zones” and marine plastics pollution has increased tenfold since 1980.

“In the end, it will hit us,” said biologist Thomas Lovejoy, who was a scientific advisor to the report. “It's not what's happening to elephants. It's not what's happening to climate or sea-level rise. It's all going to impact us.”

The planet's problems are so interconnected that they must be worked on together to be fixed right, Warren said. And many of the solutions, such as eliminating fossil fuel use, combat multiple problems including climate change and pollution, she said.

The report “makes it clear that there is no time for linear thinking or tackling problems one at a time,” said University of Michigan environment professor Rosina Bierbaum, who wasn't part of the work.

In another break, this report gives specific solutions that it says must be taken.

This report uses the word “must” 56 times and “should” 37 times. There should be 100 more because the action is so crucial, said former UN climate chief Christiana Figueres, who wasn't part of the report.

“Time has totally run out. That's why the word must' is in there,” Figueres said.

The report calls for an end to fossil fuel use and to $5 trillion in government subsidies for fossil fuel and other industries that degrade the environment. It says governments should not tax labour or production, but the use of resources that damages nature.

Scientists should inform leaders about environmental risks “but their endorsement of specific public policies threatens to undermine the credibility of their science,” said former Republican Rep. Bob Inglis, who founded the free-market climate think tank RepublicEn.org.

The report also tells nations to value nature in addition to the gross domestic product when calculating how an economy is doing. And it says people and governments “need to be redeployed from transforming nature to transforming the social and economic fabric of society.”

Getting there means changes by individuals, governments and business, but it doesn't have to involve sacrifice, said UN Environment Programme Director Inger Andersen.

“There's a country that has been on that path for 25 years: Costa Rica,” Andersen said, adding that more than 125 countries pledging to have net-zero carbon emissions by mid-century is encouraging. “Yes, these are difficult times, but more and leaders are stepping in.”